What you will need

Instructions

Open Hood

Make sure the engine is cooled down. Next open the hood. Clean the area around near the spark plugs and around the ignition coils. Remove any dirt near the spark plugs in order to avoid it from falling into the cylinders latter.

Disconnect negative battery terminal

Since you will be working with electrical system it is a safe practice to disconnect the negative battery terminal.

Remove ignition coils

Next, remove the engine cover and disconnect the ignition coils. Unplug the ignition coil connector by pressing the locking tab and then pulling the connector away.

Use a 10 mm socket to loosen the bolt that secures the coil in place. This vehicle uses coil-on-plug design, therefore you will have one coil on each spark plug. Once the bolt and connector have been removed pull the ignition coils out. If the ignition coil refuses to come up try twisting it slightly then try lifting it up and out.

Remove spark plug

Blow dirt away from the spark plug recess before you remove the spark plugs. Use the spark plug removal tool, ratchet and a 3/8" extension to remove the spark plugs from the engine. Rotate counterclockwise to remove the spark plug. You may need to use a magnet pickup toolto pull out the spark plug.

Install new spark plugs

It is time to install the new spark plug. It is a good practice to inspect the gap using a spark plug gapping tool. Certain spark plugs may come pre-gapped while others such as copper plugs should be gapped.

What are the best spark plugs for Hyundai Elantra?

The original spark plugs installed on Hyundai Elantra equipped with the four-cylinder engine are NGK or Denso iridium coated spark plugs. Below we have listed two highly rated spark plugs that will fit Hyundai Elantra.

Frequently Asked Questions

According to the owner's manual of a 2016 Hyundai Elantra, the spark plugs should be replaced every 105,000 miles or 84 months. Keep in mind that depending on your driving style and conditions the spark plugs may last longer or need to be replaced as early as 60,000 miles. The original spark plugs are iridium coated.

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